Are you referring to process sentinels? https://www.gnu.org/software/emacs/manual/html_node/elisp/Sentinels.html https://www.gnu.org/software/emacs/manual/html

Are you referring to process sentinels? https://www.gnu.org/software/emacs/manual/html_node/elisp/Sentinels.html https://www.gnu.org/software/emacs/manual/html_node/elisp/Se... > emacs has async i/o as well, it's just not used very pervasively. The most notable exception I can think of is elfeed which works very smoothly.